As well as lauding the marijuana, McGregor also offered some life advice to the legendary boxer

"Don’t let anyone take anything from you. You owe nobody nothing. It is you who is owed. Always remember that.

"I love you Mike! Iron Mike Tyson! Here is an iconic photograph as a gift from me to you."

McGregor released his own whiskey called Proper No Twelve in September - costing £39.95 for a bottle with £3.80 going to help charities.

The Irishman unveiled the drink just weeks before his showdown defeat to Khabib Nurmagomedov in Las Vegas in October, his first fight since making the switch across to boxing to take on Floyd Mayweather.

And while he was full of respect for Tyson, he also offered some man-to-man life advice for the former fighter with 50 professional wins in his career.

Conor McGregor gives fan a signed bottle of Proper No.12 Irish whiskey for his birthday

McGregor added: "It was good to meet you Mike. You spoke some things about me in the past which I did not like and I was happy to speak to you face to face, put it to bed and have some fun.

"You are in good spirits and I was happy to see this! I will always have the height of respect for you!

"Some decisions you have made around your finances I do not agree with. As a fighter you must fight here. The most.

"And this is a fight that never ends. It is even a fight that we pass on to our next in line. Our blood line.

"Make sure you stay switched on with those around you at all times. You have good people around you now, I can tell. But stay switched on.